public function isEmail($str) { $j = "/^[\w|\.]+@\w+\.\w+/i"; if(preg_match($j,$str))return $str; else return false; } public function isTelphone($str) { $j = "/^\d+-?\d+/i"; if(preg_match($j,$str))return $str; else return false; } public function isZipCode($str) { $j = "/^\d{6}/i"; if(preg_match($j,$str))return $str; else return false; } public function isUserName($str) { if(HE == 'utf-8') { //if(eregi('^[\u0391-\uFFE5|\w]{2,40}$',$str)) if(preg_match('/^[\x7f-\xff|\w]{2,40}$/i',$str)) return $str; else return false; } else return true; } public function isAllowKey($str) { //$j = "/^[\w|\[|\]|\-|_]+$/i"; $j = "/^[\w|\-|_]+$/i"; if(preg_match($j,$str))return $str; else return false; } public function isPassword($str) { if(strlen($str)>=6) return $str; else return false; } public function isUrl($str) { $j = "/^http:\/\/.+/i"; if(preg_match($j,$str))return $str; else return false; } public function subString($str,$lenth,$start = 0) { if(strlen($str) < $lenth && !$start)return $str; if(HE == 'utf-8')$l = 3; else $l = 2; $k = 1; if($start) { $m = $start; while($k)if(ord($str[--$m]) < 128)$k = 0; $k = $l - ($lenth-$m)%$l; $start = $start + $k; } $t = substr($str,$start,$lenth); $m = $lenth; $k = 1; while($k)if(ord($t[--$m]) < 128)$k = 0; $k = ($lenth-1-$m)%$l; if($k)$t = substr($t,0,$lenth-$k); if($start) return $t; else return $t.'...'; } public function hexString($str,$hex = 16) { $tmp = ""; $e = strlen($str); if(!$e)return false; for($i=0;$i<$e;$i++) { $t = base_convert(ord($str[$i]),10,16); $tmp .= "\x{$t}"; } return $tmp; } public function encode($info) { $info = serialize($info); $key = CS; $kl = strlen($key); $il = strlen($info); for($i = 0; $i < $il; $i++) { $p = $i%$kl; $info[$i] = chr(ord($info[$i])+ord($key[$p])); } return urlencode($info); } public function decode($info) { $key = CS; $info = urldecode($info); $kl = strlen($key); $il = strlen($info); for($i = 0; $i < $il; $i++) { $p = $i%$kl; $info[$i] = chr(ord($info[$i])-ord($key[$p])); } $info = unserialize($info); return $info; } public function enstr($str) { $str = base64_encode($str); $str = str_replace(array('+','/','='),array('-','_',''),$str); return $str; } public function destr($str) { $str = str_replace(array('-','_'),array('+','/'),$str); $str = base64_decode($str); return $str; }